Triple screw-driver.



5. Bz BROWN.

TRIPLE SCREW DRIVER.

APPLICATION FILED Nov. 24. I9I5.

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@a gm @15m J. B. BROWN.

TRIPLE SCREW DRIVER.

vAPNIC/mon FILED Nov. 24. |915.

Patented May 15, 191?.

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JOHN B. BROWN, OF AKRON, OHIO.

TRIPLE SCREW-DRIVER.

Application led November 24, 1915.

To @ZZ Lv/1.0m t may concern.'

Be it known that I, JOHN B..BnowN, a citizen of the United States,residing at Akron, in the county of Summit and State of Ohio, haveinvented certain new and useful Tmprovements in Triple Screw-Drivers, ofwhich the following is a specification.

This invention relates to a triple screw driver, and the object of theinvention is a tool of this type having a plurality of blades or screwdrivers of dierent sizes, preferably three, so that there will always beconvenient for use a screw driver of approximately the proper' size forany screw to be operated on.

A further object of the invention is to provide suitable means wherebythe tips of the drivers are normally concealed but any particular one isbrought into operative position on partial rotation of a sleeve, andreturned to normal or concealed position when through with.

The invention consists also in the novel features of constructionhereinafter described, pcinted out in the claim and shown in theaccompanying drawings, in which z- 'Figure l is a side elevation of thecomplete device, one of the screw drivers being in operative position.

Fig. 2 is an enlarged longitudinal section, partly broken away.

Fig. 3 is a section on the line 3 3 of Fig. 9..

Fig. Fig. 2.

Fig. 5 is a side elevation of a cam sleeve, a retaining sleeve beingshown in section.

Fig. 6 is a bottom view of the sleeve.

Fig. 7 is a perspective view of a tool holder.

Fig. 8 is a perspective view of the three screw drivers, partly brokenaway, and disconnected from the holder and sleeve.

It will be obvious that in the manufacture of any device of thischaracter the nature of the materials used may cause minor variations,as for example where a. portion of the device is of wood and a part ofmetal, two parts may be united which if of one material, as for exampleall metal, would be integral, or parts which when assembled act as asingle unit may be formed separately and then combined for convenienceof manufacture.

In illustrating my invention I show a handle l of Wood. provided with a.errule 2 4 is a section on the line 4-4 of Specification of LettersPatent.

Patented May 15, 1947.

Serial No. 63,249.

that projects beyond the handle portion and said handle is recessed asshown at 3.

Tn said recess is suitably secured, as by a screw, the upper end of asuitable tool holder comprising an inner or upper portion 4 cylindricalin form and integral with an cuter cone portionv. This portieri is ofgreater diameter at its base, the cone being considered as inverted,than the cylinder 4 and is stepped therebyforming the shoulders 6. Theholder' is completed by a square, hollow shank 7 Vihere th-e parts 4 and5 of the holder are of wood the shank 7 which is of metal is extendedthrough to the inner end of the cylinder 4, as is clearly shown in Figs.2 and 7. The cylinder 4 is longitudinally slotted as shown at 8 andthese slots extend through the shank 7 also, which in the assembleddevice is a part of the holder, and the cylinder, cone and vshank may beconsidered as a single unit.

These slots are preferably three in number, one for each tool held inthe holder.

Rotating on the cylinder 4 are sleeves 9 and l0, said sleeves bearing onthe shoulders 6, and the sleeve 9 extending up into the ferrule 2. Thesesleeves may also be considered as a single unit as they are rigidlysecured together, by any suitable means.

The sleeve 9 is provided with a continuous circumferential cam slotwhich also extends longitudinally with respect to the sleeve andcomprising a comparatively straight, transverse portion c at the innerend and on one side of the sleeve and a semi-circumferential compoundcurved portion b at the opposite end and on the opposite side, theremainder of the slot 9a extending along the two remaining sides andconnecting the portions a and b.

This might be formed as an interior groove, but it is more convenient toform it as a slot which of course divides the sleeve 9 into twosections, the sleeve l0 acting as a cover or retaining sleeve.

The screw drivers l1 are slidably held in the shank 7 and their innerends are angled as indicated at 12. These angled portions extendrespectively through the slots 8 and engage the cam groove, restingnormally in the portion c but being adapted to travel along the portions9iL into the portion b. The slots 8 are equi-distant apart and the camslot is so proportioned that two of the angled portions 12 will alwaysrest in the portion c of the groove and only one at a time be in theportion in which position the outer end of the screw driver will beprojected from the shank and in positionv for use.

The exterior face of the retaining sleeve 10 is milled or roughened andby simply giving the sleeve a partial rotation a screw driver can bebrought outwardly into position for use, and as they have screw-headengaging points of different size any desired size can be selected andbrought into the position shown in Figs. l and 2 by rotating sleeve 10which also rotates the sleeve 9 and the cam groove.

To prevent too free rotation of the sleeves and serve as a lock when one`of the screw drivers is in position for use I employ a ball 13 pressedon by a spring 14C located in a bore 14a, which also forms a seat forthe ball and is produced in the cylinder t at its juncture with the cone5, which may bc considered as the base of the cylinder.

In the sleeve 9 are produced three recesses l5, corresponding in numberto the slots S, and as the .sleeve is rotated the ball is pressed backinto the bore 14 until one of said recesses comes into alinement with itwhen the spring iorces it partly into said recess, and the ball forms alock between the sleeve and the cylinder and its cone base 5.

By means of the above described device I produce a very simple andconvenient triple screw driver, any one of the drivers being adapted tobe quickly brought into position and all of them being concealed withinthe holding member when not in use.

I desire the sleeves 9 and lO to be consid- Aered as single units, andalso the cylinder 4f and its base 5 and the shank 7 as when formedentirely el metal these parts can be in one piece.

What I claim is:-

In a device of the kind described, the combination with a handle, woodworking tools normally concealed therein, a rotatable sleeve having acam slet normally engaged by said tools and adapted to project andwithdraw them one at a time, a spring pressed ball carried by thehandle, and recesses carried by the sleeve and adapted to receive saidball, a recess alining with said ball during extreme outward projectionof one of said tools, as and for the purpose set forth.

In testimony whereof I al'liX my signature in the presence oi twowitnesses.

JOHN B. BROWN.

Witnesses:

JACOB HEDDEsHEIMER, Vieron BROWN.

Copies of this patent may be obtained for ve cents each, by addressing'the Commissioner of Patents, Washington, D. C.

